Upon accelerating from a standing stop or coming to a complete stop there is a fairly loud dull thud from the back of the truck somewhere. I recently completely rebuilt the posi rear end, replaced the leaf springs and shocks, the driveshaft and U-joints are new as is the transmission and all mounts. I took it to a frame shop and had it inspected with no problems found, even though they did hear the noise. The noise itself is random, some days it only does it once or twice, while other days it's every time you start or stop. It has made this noise both before and after the rebuilds. I've had two shops and one GM dealer tell me this is 'normal' and to just ignore it. I find that hard to believe, so I was wondering if anyone has any ideas on what would cause a dull thud like this.
2007-01-01
18:13:36
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7 answers
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asked by
Anonymous